Finding the Fourth Proportional to 225,635,974.57, 311,263,048.38 and 147,365,344.09
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Solution
The fourth proportional to 225,635,974.57, 311,263,048.38 and 147,365,344.09 is: 203,289,330.59
Step by Step Solution
- Step 1: Write the proportion equation
225,635,974.57 : 311,263,048.38 = 147,365,344.09 : x - Step 2: Convert to fraction form
225,635,974.57/311,263,048.38 = 147,365,344.09/x - Step 3: Cross multiply
225,635,974.57x = 311,263,048.38 × 147,365,344.09 - Step 4: Simplify right side
225,635,974.57x = 45,869,386,227,021,016 - Step 5: Solve for x
x = 45,869,386,227,021,016/225,635,974.57 - Step 6: Final answer
x = 203,289,330.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.